Answer:
It will be 0 newton
Explanation:
Basic concept to understand here is the increase and decrease in apparent weight of a body when elevator moves upward and downward. Remember, the mass does not change but apparent weight changes with the motion of elevator. It is due to the push by floor. Simply, if you standing on earth, the gravity pulls you down, but ground push you up, so both forces balance each other and you stand straight.
Notice that when elevator moves upwards, the apparent weight of a person increases which is due to the inertia and push of floor, our body resists to move upward so floor push us harder and we feel more weight.
Similar is the case for downward motion, when lift moves downward, our body which is at rest but its weight is acting downward. So, floor push us less harder against our original weight. So our apparent weight reduces.
Now in case of cable break, Lift will start to go along acceleration, there will be no floor and we would be like on the space, so their would be no apparent weight and weighing scale would show our weight 0
To solve this problem we will apply the concepts related to centripetal acceleration, which will be the same - by balance - to the force of gravity on the body. To find this acceleration we must first find the orbital velocity through the Doppler formulas for the given periodic signals. In this way:
Here,
Orbital Velocity
Maximal Wavelength
Average Wavelength
c = Speed of light
Replacing with our values we have that,
<em>Note that the average signal is 3.000000m</em>
Now using the definition about centripetal acceleration we have,
Here,
v = Orbit Velocity
r = Radius of Orbit
Replacing with our values,
Applying Newton's equation for acceleration due to gravity,
Here,
G = Universal gravitational constant
M = Mass of the planet
r = Orbit
The acceleration due to gravity is the same as the previous centripetal acceleration by equilibrium, then rearranging to find the mass we have,
Therefore the mass of the planet is
Explanation:
power = Force × distance /time
power = 944N × 12.4m/36secs
power = (944×12.4/36)Nms—¹
power = 390.2Nms—¹ or 390.2Watts or 390.2Js—¹
The correct answer should be A. Misjudging others' abilities
Taking responsibility when you make a mistake and listening to your supervisor are a must in the adult world while saying thank you is not a mistake but rather a trait. Misjudging others' abilities can sometimes even be offensive and is common as a mistake.